Would need to know prop size and lipo setup (2S or 3S) like guver hit on.

Conversely you could use "ecalc". Just google "ecalc prop". It's a nifty calculator where you can put in your batteries, esc, motor and prop size. You can even spec specific motors and certain props. Checking the amps vs reality is always suggested .

You may find increasing the prop diameter is all you need to do if the motor is under utilized.